APOLLO Technical Manual
Jumpers and connectors
TPM
This position is used with the APOLLO TPM option to provide a tamper detect facility.
Further information about the operation of this function will be made available in future
updates.
JP3 – RS485/422 configuration
This jumper is used to configure the RS485/422 serial interface. It can be used to
enable/disable the RS485/422 termination resistors.
The JP3 jumper is illustrated in the following diagram:
Position 3-4: RS422
Position 1-2: RS485
Jumper settings are detailed in the following sections.
RS485 termination resistor
RS485
Description
RS485 termination resistor connected.
RS485 termination resistor
disconnected.
Default setting:
RS422 termination resistor
RS422
Description
RS422 termination resistor connected
RS422 termination resistor
disconnected.
Default setting:
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